The painkiller addiction epidemic has also led to a rise in heroin abuse. A new report by the Substance Abuse and Mental Health Services Administration also found that found that four out of five recent heroin initiates — about 79% — previously used prescription pain relievers non-medically. According to SAMHSA, the number of people reporting that they have used heroin in the past 12 months rose from 373,000 people in 2007 to 620,000 people in 2011. Similarly, the number of people dependent on heroin in the past 12 months climbed from 179,000 people in 2007 to 369,000 people in 2011.